12227-68-8 Usage
Preparation
C.I. Solvent Orange 5 (by 3-Amino-2-hydroxy-5-nitrobenzenesulfonic acid diazotization, with 3-Methyl-1-phenyl-1H-pyrazol-5(4H)-one coupling and then in the 130 ℃ in Chromium formate in aqueous solution, heating 3 hours, make it into Chromium complex and) into metal complex.
Properties and Applications
orange. Soluble in ethanol, slightly soluble in Cellosolve. In concentrated sulfuric acid to dark yellow, diluted into orange; In 10% sodium hydroxide solution for orange.
Standard
Light Fastness
Heat-resistant(℃)
water
Sodium Carbonate(5%)
Hydrochloric acid(5%)
Melting point
Stable
ISO
Well
180
Well
Standard
Light Fastness
Melting point
Stable
ISO
Well
Check Digit Verification of cas no
The CAS Registry Mumber 12227-68-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,2,2,2 and 7 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 12227-68:
(7*1)+(6*2)+(5*2)+(4*2)+(3*7)+(2*6)+(1*8)=78
78 % 10 = 8
So 12227-68-8 is a valid CAS Registry Number.
InChI:InChI=1/C16H13N5O7S.C16H11N5O7S.Cr/c2*1-9-14(16(23)20(19-9)10-5-3-2-4-6-10)18-17-12-7-11(21(24)25)8-13(15(12)22)29(26,27)28;/h2-8H,1H3,(H3,17,18,19,22,23,26,27,28);2-8H,1H3,(H,26,27,28);/q;-2;+3/p-1
